.alist{
    width: 1200px;
    margin: 20px auto;
    display: flex;
    justify-content: space-around;

}
.alist a{
    color: #fff;
    text-decoration:none;
    width:150px;
    height: 40px;
    border: 1px solid #fff;
    border-radius: 10px;
    text-align: center;
    line-height: 40px;
}